Apparatus for extracting dyes



(No Model.)

G. L. ALLEN.

APPARATUS FOR EXTRAOTING DYBS.

No. 274,891. Patented Apr.3,1883.

m'fnewes Inventor.

UNITED STATES PATENT OFFICE.

GEORGE L. ALLEN, OI VVORUESTER, MASSACHUSETTS.

APPARATUS FOR EXTRACTING DYES.

SPECIFICATION forming part of Letters Patent No. 274,891, dated April 3, 1883,

Application filed October 14, 1:82.

To all whom it may concern:

Be it known that I, Gnoaen L. ALLEN, of Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Apparatus for Extracting Dyes; and I declare the following to be a description of my said invention sufficiently full, clear, and exact to enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, which form a part of this specification.

The object of my present invention is to render the apparatus more convenient, elticient, and desirable for use.

One feature of my invention relates to the construction and arrangement of devices for supporting the perforated diaphragm to permit ofthe ready and convenient removal and replacement of the parts thereof.

Another feature of my invention relates to the manner of constructing and arranging the strainer in connection with the lower pipe-aperture.

Another feature of my invention relates to the combination of devices for closing the feeding and discharge openings in a manner to give tight and perfect connections while permitting ready access to the interior.

Another feature of my invention relates to the introduction ofsteam circumferentially to the interior of the heir above the false bottom or perforated diaphragm.

The peculiarities of construction and particular subject-matter claimed are hereinafter definitely specified.

In the drawings Figure 1 isa part side, part sectional view of a dye-extractor, illustrating the nature of my invention. Fig. 2 is a horizontal section at line m or, showing a portion of the diaphragm removed to reveal parts heneath. Fig. 3 shows a side view of the supporting-standard, with sectional'parts of the diaphragm and head, and views of the collar and key separate from the standard. Fig. 4 shows a plan and side of one of the diaphragmsegments. Fig. 5 is a sectional view through one side of the closing-plate and its supporting devices.

On the drawings, A denotes the body or shell of the heir, which is made substantially in the ordinary form, with upper and lower (No model.)

heads, A A, to which are respectively connected the escape pipe B and the draw-oft" pipe (J for supplying steam to the interior and for drawing oil" the dye liquid. Openings with doors I) for the introduction and dis charge of the dye wood or material are arranged in the side ofkeir at the usual positions. The position of lower opening is indicated in Fig. 2 by dotted lines.

E indicates the false bottom, grating, or perforated diaphragm, a rranged for supporting the solid portions of the dye material while permitting the draining off of the liquid. Said diaphragm is made of a number of removable sections, (2, of the form indicated in Figs. 2 and 4, and of such size that they can be passed through the door-opening. The outer ends of the sections a are supported by a rim or flange, F, attached to the inner surface of the shell A, while above this rim F, at a distance corresponding with the thickness of the sections 0, is a second or upper rim, G, attached in similar manner to the shell A, and which serves to prevent the sections e from being forced upward, the edges of the diaphragm being thus securely retained between the rims F and G. The rim G does not pass across the door-space, but extends over the corners of the last section 0 sutticiently far to retain it in position.

1 indicates the standard for supporting the center of the diaphragm or inner ends of the perforated sections 6. The foot of the standard I, which rests upon and is connected with the head A, is made furcated to span the opening and strainer of the pipe 0. The upper part of the standard I is made with a flange or shoulder, 2, upon which the sections c rest,and witha central stud projecting above the sections to receive the locking devices. A collar or ring, J. is arranged to slip over the end of the standard, and a key, K, is passed through the end of the stud above said collar, thereby securing all of the diaphragm-sections in position. For removing and replacing the diaphragm E it is simply necessary to knock out the key K and slip off the collar J from the standard. Then by raising theinner ends of the sections 0 they can be released from the rims F G and passed one atatime through the door-opening, the operation being readily and conveniently effected, so that no trouble edges slightly separated.

is experienced in obtaining access to the lower chamber of the apparatus.

L indicates a perforated spherical]y-arched plate or strainer arranged over the end of the pipe 0, within the lower chamber of the keir and beneath the furcated standard I. This strainer, by reason of its spherical form, serves to distribute the entering steam within the chamber in a very thorough and satisfactory mannerbenea ththediaphragmE. Thestrainerplate L may be secured to the head by rivets or bolts or it may be detaehably secured thereto, so as to permit its ready removal after the diaphragm has been taken out. A convenient method of fastening it to place is to wedge it beneath grooves or lugs formed on the feet of the furcated standard I. The segments a are preferably provided with small knobs or pins on their edges, which facilitate littiug them together, and retain them with their The rim G forms a closing-joint about the circumference of the diaphragm, and obviates the necessity and labor of accurately fitting the outer edges of the several segments e.

The upper and lower doors, I) and I), are of similar construction. The door-frame D is provided with a groove containing soft metal, rubber, or other suitable packing material, P, and is furnished with cars projecting from its sides, as indicated. The door-plate ,I) is provided with projectingarmszhjurcated at their outer ends to receive the claiil'ping-screws M, which are hinged to the tTOOP-I IHHIBD as shown at in, Fig. 5, so as to swing back out of the way, as indicated by dotted lines, Fig. 5, or to swing up into the forks of the arms in position to permit of the door beingclamped to its seat by the hand-wheel nuts N, screwed down onto theendsofthearmsd,asillnstrated. Thedoor is hinged at one side, h, so as to swing back to one side of the frame I) when opened. The face ofthedoor-plate is provided with a sharp angular flange or rib, S, to match the packing P of the door-frame, which flange is indented into said packing when the door is forced against its seat, and a close-fitting, tight joint is thus formed to prevent the escape of steam or liquid around the doors.

t t t indicate cooks for determining thelevel and quality of liquid within the heir.

V indicates a coil of perforated steaiupipe, arranged around the interior of the shell at a position intermediate to the height of the heir, or above the lower or discharge door, D. Said pipe V is connected with the steam-supply,

and serves for conveying steam to the interior of the heir, in addition to the supply from pipe (1, and delivering it circumfcrentially, or near the shell A, into the mass of dye wood or material, the object and result being to greatly enhance the boiling capacity of the apparatus and to eflect an important reduction in the time required for extracting the charge of dyestufi's. The coil V may be carried once or more around the circle of the shell, as desired.

The general process of extracting the dyes with myapparatus, being substantially similar to the usual Well-known method with apparatus of this class, need not he herein particular] y described.

It will be understood that I do not herein make claim, broadly, to a dye-extractor having a diaphragm and upper and lower doors located in relation to the shell at the positions indicated, as I am aware that extractors of this class have heretofore been in use.

\Vhat I claim as of my invention, and desire to secure by Letters Patent, is

1. The standard I, provided with a shoulder, '07, for supporting the diaphragm, and having a fnrcated footfor spanning the pipe-aperture, as set forth.

2. The combination of the body or shell provided with upper and lower internal rims or flanges, 1 G, the perforated segmental diaphragm E, the central furcated standard, I, having the flange or shoulder 'i, the collar J, and the key K, substantially as and for the purposes set forth.

3. In a dye-extractor, the combination, with the body A, of the door-frames I), having the recessed flange containing packing material 1. and the hinge-ears at m, the door 1), provided with the angular face-flange S and projecting bifurcated arms (I, the swinging screws M, and hand-wheel nuts N, said parts being arranged as shown, and for the pur poses set forth.

4. The combination, as described, of the bottom head A, the pipe U, the perforated diaphragm E, the furcated supporting-stand ard I, and the spherically-arched strainer L, secured between the feet of said standard, all in the manner shown, for the purposes set forth.

Witness my hand this 4th day of October, A. D. 1882.

GEORGE L. ALLEN.

\Vitnesses CHAS. H. BURLEIGII, W. A. WHEELER. 

